EP1693253A1 - Antenne pour détection de siège d'enfant - Google Patents

Antenne pour détection de siège d'enfant Download PDF

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Publication number
EP1693253A1
EP1693253A1 EP05101159A EP05101159A EP1693253A1 EP 1693253 A1 EP1693253 A1 EP 1693253A1 EP 05101159 A EP05101159 A EP 05101159A EP 05101159 A EP05101159 A EP 05101159A EP 1693253 A1 EP1693253 A1 EP 1693253A1
Authority
EP
European Patent Office
Prior art keywords
seat
antenna
cable
child seat
antenna structure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05101159A
Other languages
German (de)
English (en)
Inventor
Yves Decoster
Alain Noll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IEE International Electronics and Engineering SA
Original Assignee
IEE International Electronics and Engineering SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IEE International Electronics and Engineering SA filed Critical IEE International Electronics and Engineering SA
Priority to EP05101159A priority Critical patent/EP1693253A1/fr
Priority to JP2007554561A priority patent/JP2008529878A/ja
Priority to EP06708174A priority patent/EP1851093A1/fr
Priority to CNA2006800050381A priority patent/CN101124108A/zh
Priority to US11/816,242 priority patent/US20100127877A1/en
Priority to PCT/EP2006/050831 priority patent/WO2006087295A1/fr
Publication of EP1693253A1 publication Critical patent/EP1693253A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/27Adaptation for use in or on movable bodies
    • H01Q1/32Adaptation for use in or on road or rail vehicles
    • H01Q1/325Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3291Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01556Child-seat detection systems
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/0104Communication circuits for data transmission
    • B60R2021/01081Transmission medium
    • B60R2021/01088Transmission medium wireless

Definitions

  • the present invention generally relates to a child seat sensor for the detection of certain parameters of an auxiliary child seat on a passenger seat of a vehicle. These parameters are used in order to adapt air bag deployment in case of an accident to the circumstances determined by these parameters.
  • emission and reception antenna circuits of child seat sensors are designed and manufactured on a carrier material, such as e.g. carrier foils, which support the printed antenna circuits.
  • a carrier material such as e.g. carrier foils, which support the printed antenna circuits.
  • a child seat sensor printed on a carrier foil and forming an integral component of a seat occupancy sensor is disclosed in German patent application DE 4409971 A1.
  • the child seat sensor component consists of at least one antenna emitting an alternating electromagnetic field. If a child seat is equipped with an identification carrier, the electromagnetic field emitted by the antenna is altered in a characteristic manner and the change of the field can be detected by a base station, which is in communication with air bag controlling electronics.
  • a child seat sensor antenna structure to be integrated into a vehicle seat comprises at least one at least partially self-supporting antenna wire or cable.
  • the antenna wire or cable provides the antenna structure with a certain degree of rigidity, which thus does not need to be arranged on a carrier layer, such as e.g. a foil.
  • the degree of rigidity of the antenna wire is preferably such that the antenna structure can support its own weight where it is not supported by a bearing.
  • the child seat antenna structure is independent from other components of a seat occupancy system, such as e.g. a pressure sensor, which eases styling and comfort problems encountered with integrated occupancy sensors.
  • the self-supporting antenna wires facilitate the production process of the seat as it can e.g. be positioned or sunk into the seat cushion during a foaming process.
  • the spatial dimensions of the at least one antenna wire or cable essentially determine the spatial dimensions of the antenna structure.
  • the antenna structure may have relatively large interstices allowing improved circulation of air when integrated into the seat. Higher seating comfort is thereby achieved.
  • the at least one antenna wire or cable is sheathed with a casing comprising insulating material.
  • the antenna wire or cable can have a particular cross-section, especially a circular, elliptical or polygonal cross section. It will be appreciated that the cross-section of the antenna wire or cable may vary in diameter and shape, enabling zones of dedicated haptic properties.
  • the present invention further relates to a vehicle seat with a seat cushion, wherein a child seat sensor antenna structure with an at least partially self-supporting antenna wire or cable is foamed into the seat cushion.
  • a vehicle seat assembly process comprises the steps of providing a mould for producing a seat cushion by foaming, positioning an antenna structure with an at least partially self-supporting antenna wire or cable into the mould and producing the seat cushion by injecting foam material into the mould.
  • a vehicle seat 10 is equipped with an occupancy sensing system.
  • the occupancy sensing system comprises e.g. a foil-type pressure sensor 12 with an array of active areas for sensing pressure due to a seat occupant and a child seat sensor 14 with a large emitting antenna and two smaller receiving antennas.
  • a control unit 16 calculates a seat occupancy status.
  • the antennas of the child seat sensor comprise metal wire loops capable of supporting their own weight locally.
  • the antennas are arranged substantially horizontally underneath the seat cover in the cushion of the vehicle seat.
  • the pressure sensor is arranged in a lower part of the cushion.
  • a CPOD antenna structure that is independent of the pressure sensor reduces the development and design efforts, which have to be made in presence of integrated sensors. As the antennas are manufactured independently from the pressure sensor, dedicated antenna technology can be used.
  • the at least partially self-supporting wires or cables of the child seat sensor allow furthermore uncomplicated handling due to their inherent robustness.
  • Fig. 2 shows a mould 18 for producing a seat cushion.
  • Self-supporting antenna loops 20, 22, 24 have been positioned and fixed in the interior space of the mould 18.
  • the self-supporting antenna loops 20, 22, 24 are placed according to their desired location inside the seat cushion.
  • a substrate such as e.g. a carrier foil
  • large gaps 26, 28, 30, 32 exist between the wires.
  • the foam material can easily pass the gaps 26, 28, 30, 32 and fill the mould 18.
  • the seat cover can be applied in a separate step onto the seat cushion; alternatively, the foam material can also be injected into a mould formed by the seat cover material.
  • a pressure sensor If a pressure sensor is to be supplied, it can be integrated into the seat at an appropriate moment of the assembly process, independently of the antennas of the child seat sensor.
  • the child seat sensor and the pressure sensor can be electronically interconnected outside the seat cushion to form the occupancy sensing system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP05101159A 2005-02-16 2005-02-16 Antenne pour détection de siège d'enfant Withdrawn EP1693253A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP05101159A EP1693253A1 (fr) 2005-02-16 2005-02-16 Antenne pour détection de siège d'enfant
JP2007554561A JP2008529878A (ja) 2005-02-16 2006-02-10 チャイルドシートセンサアンテナ
EP06708174A EP1851093A1 (fr) 2005-02-16 2006-02-10 Antenne de capteur pour siege enfant
CNA2006800050381A CN101124108A (zh) 2005-02-16 2006-02-10 儿童座椅传感器天线
US11/816,242 US20100127877A1 (en) 2005-02-16 2006-02-10 Child seat sensor antenna
PCT/EP2006/050831 WO2006087295A1 (fr) 2005-02-16 2006-02-10 Antenne de capteur pour siege enfant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05101159A EP1693253A1 (fr) 2005-02-16 2005-02-16 Antenne pour détection de siège d'enfant

Publications (1)

Publication Number Publication Date
EP1693253A1 true EP1693253A1 (fr) 2006-08-23

Family

ID=34938746

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05101159A Withdrawn EP1693253A1 (fr) 2005-02-16 2005-02-16 Antenne pour détection de siège d'enfant
EP06708174A Withdrawn EP1851093A1 (fr) 2005-02-16 2006-02-10 Antenne de capteur pour siege enfant

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP06708174A Withdrawn EP1851093A1 (fr) 2005-02-16 2006-02-10 Antenne de capteur pour siege enfant

Country Status (5)

Country Link
US (1) US20100127877A1 (fr)
EP (2) EP1693253A1 (fr)
JP (1) JP2008529878A (fr)
CN (1) CN101124108A (fr)
WO (1) WO2006087295A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016217498B4 (de) * 2016-09-14 2019-03-07 Volkswagen Aktiengesellschaft Bauraumneutrale Koppelantenne

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07164943A (ja) * 1993-12-13 1995-06-27 Koito Ind Ltd 送信アンテナを内蔵した乗物用腰掛
DE4409971A1 (de) * 1994-03-23 1995-09-28 Daimler Benz Ag Vorrichtung zur Erkennung eines auf dem Beifahrersitz eines Kraftfahrzeugs festgeschnallten Kindersitzes
US5928548A (en) * 1994-07-18 1999-07-27 Tocksfors Verkstads Ab Electric cushion heater
US6147332A (en) * 1996-07-12 2000-11-14 Kongsberg Automotive Ab Arrangement and method for manufacturing of a heatable seat
US6307518B1 (en) * 1996-11-12 2001-10-23 Siemens Aktiengesellschaft Antenna configuration of an apparatus for detecting a child safety seat placed on a seat of a motor vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07164943A (ja) * 1993-12-13 1995-06-27 Koito Ind Ltd 送信アンテナを内蔵した乗物用腰掛
DE4409971A1 (de) * 1994-03-23 1995-09-28 Daimler Benz Ag Vorrichtung zur Erkennung eines auf dem Beifahrersitz eines Kraftfahrzeugs festgeschnallten Kindersitzes
US5928548A (en) * 1994-07-18 1999-07-27 Tocksfors Verkstads Ab Electric cushion heater
US6147332A (en) * 1996-07-12 2000-11-14 Kongsberg Automotive Ab Arrangement and method for manufacturing of a heatable seat
US6307518B1 (en) * 1996-11-12 2001-10-23 Siemens Aktiengesellschaft Antenna configuration of an apparatus for detecting a child safety seat placed on a seat of a motor vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *

Also Published As

Publication number Publication date
EP1851093A1 (fr) 2007-11-07
CN101124108A (zh) 2008-02-13
WO2006087295A1 (fr) 2006-08-24
US20100127877A1 (en) 2010-05-27
JP2008529878A (ja) 2008-08-07

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